Earth-anchor.



PATENTED NOV. 8, 1904.

G. H. MILLER.

EARTH ANCHOR.

APPLICATION FILED JUNE 7, 1904.

NO MODEL.

fiivenwr UNITE STATES Patented November 8, 1904.

PATENT OFFICE.

EARTH-ANCHOR.

SPECIFICATION forming part of Letters Patent No. 774,687, dated November8, 1904. Application filed June 7, 1904. Serial No. 211,484. (No model.)

To ztZZ whom it may concern:

Be it known that I, GEORGE H. MILLER, a citizen of the United States,and a resident of Norwalk, county of Huron, State of Ohio, have inventedcertain new and useful Improvements in Earth-Anchors, of which I herebydeclare the following to beafull, clear, and exact description, such aswill enable others skilled in the art to which it appertains to make anduse the same.

The objects of the invention are to provide means for lessening thefriction upon the eye of an earthanchor such as described in a formerpatent granted to me on July 25. 1903, employed in staying posts forsupporting trolley wires and in which a draw-bar provided with an eye ispivoted to a troughshaped earth-engaging portion and in the use of whichconsiderable friction is required in the tightening upon thestraining-rope to cause the trough-shaped portion to cut into the earthand assume a position therein at right angles to the line of thedraw-bar.

A further object is to provide an insulation between the draw-bar andrope which when it is made of wire may become the conductor of thecurrent to the earth in case the conductor-wire above should fall uponit, thus short-circuiting the current. Sometimes also, especially withmetal posts, a short circuit might be formed through the straining-wireand draw-bar to the ground. To obviate this friction and to enable powerto be applied to the eye without damage to the rope, a pulley is pivotedtherein, which has the double function of removing friction, andtherefore detrimental wear, upon the rope and beingformed ofnon-conducting material or protected thereby from contact with the eyeserves to insulate the'draw-bar from the straining-rope, and thusprotect the conductor-wire above.

My invention further consists in the combination and arrangement ofparts and construction of details, as hereinafter described, shown inthe accompanying drawings, and specifically pointed out in the claims.

In the accompanying drawings, Figure 1 is a vertical elevation of thecomplete device, showing the anchor, draw-bar, and strainingrope inposition and the anchor embedded in the earth. Fig. 2.is an enlargedview of end of draw-bar and pulley. Fig. 3 is a sectional view of amodified form of pulley, showing an inner sleeve of non-conductingmaterial within a metal rim.

In the views, 1 is the post which supports the wires which conduct anelectric current. 2is the anchor. 3 is the draw-bar. 4is the eye uponthe outer end thereof. 5 is apulley piv- "oted therein, and 6 is thestraining-rope.

The anchor as described in the previous patent referred to is firstfolded so as to be in line with the draw-bar and then is introducedwithin the hole bored into the earth. The straining-rope is then drawnover the pulley, and as the power increases the upper end of thetrough-shaped earth-engaging portion of the anchor will pierce the earthuntil its en tire body lies across the hole at right angles to thedraw-bar. This strain on the rope is excessive and would soon wear itout if it were allowed to draw'over the bare eye; but with the pulleythe friction is reduced to a minimum and the rope is not injured.

The pulley may be made of wood, glass, or other non-cond uotor ofelectricity, and so, also, serve to prevent the passage of the currenttherethrough in case the insulators should break or the post or the wirefall across the Wire rope. Theinsulating-pulley can be made in anysuitable manner for this purpose and can. be composed of metal linedwith anysuitable insulating material, as 7 in Fig. 3.

' Having described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In combination with a folding anchor, provided with a draw-bar andadapted to antomatically turn in the earth at right angles to the saiddraw-bar on the application of straining power thereto, astraining-rope, and a pulley pivoted upon the outer extremity of thedraw-bar over which said rope passes, substantially as described.

2. In combination with a folding anchor provided with a draw-bar havingan eye at its outer extremity, of means for turning said anchor to enterthe earth and assume a posi tion at right angles to the draw-bar,consisting of a pulley; pivoted in said eye and a straining-rope passingover said pulley, substantially as set forth.

3. The combination with a trough-shaped earth-anchor, and draw-barpivoted thereto, of an eye in the outer extremity of the earthanehor anda pulley pivoted therein, substantially as described.

4L. The combination with an earth-anchor, and draw-bar therefor, of aneye in said drawbar, a straining wire rope, and an insulating devicebetween the rope and draw-bar over which the rope passes, the saidinsulating device comprising a pulley composed of non-conductingmaterial, substantially as described.

5. The combination with the draw-bar of an earth-anchor, of a pulleypivoted thereon and provided with an insulating portion,'substan tiallyas and for the purpose set forth.

6. The combination With an earth-anchor and draw-bar connectedtherewith, of an eye upon the draw-bar, and a pulley pivoted in saideye, substantially as described.

In testimony whereof I hereunto set my hand this 19th day of April,1904.

GEORGE H. MILLER.

W'itnesses:

A. V. ANDREWS, ELIZABETH BURNS.

